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/* Copyright (c) 2005-2010, Michael Santos <michael.santos@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* rst: TCP connect reset utility
*
* Aggressively resets TCP connections using TCP RST's or
* ICMP.
*
*/
#include "rst.h"
libnet_t *
rst_net_open(char *dev)
{
libnet_t *l = NULL;
char buf[LIBNET_ERRBUF_SIZE];
l = libnet_init(LIBNET_RAW4, dev, buf);
if (l == NULL)
(void)fprintf(stderr, "libnet_init: %s", buf);
return (l);
}
int
rst_net_init(libnet_t *l)
{
return (0);
}
void
rst_net_check(pkt_t *rst)
{
if (rst->flags & RST_ICMP) {
ISLTZERO(rst_icmp_check(rst->icmp.type, rst->icmp.code));
rst_icmp_type(rst);
}
else if (rst->flags & RST_TCP_RST) {
(void)fprintf(stdout, "TCP RST connection storm selected.\n");
}
}
int
rst_net_close(libnet_t *l)
{
libnet_destroy(l);
return (0);
}